Low seroprevalence of SARS-CoV-2 infection among healthcare workers of the largest children hospital in Milan during the pandemic wave
A. Amendola, Elisabetta Tanzi, Laura Folgori, Lucia Barcellini, Silvia Bianchi, María Gori, Giulia Maria Luisa Cammi, Elena Albani, Gianvincenzo Zuccotti
Abstract
was the first region within a Western country to be severely hit by the spread of severe acute respiratory coronavirus virus 2 (SARS-CoV-2). The coronavirus disease 2019 (COVID-19) pandemic started officially in Italy on February 21, 2020, 1 although today it is recognized that the virus had been circulating unnoticed for at least a month prior to that date. 2,3 Several nosocomial outbreaks occurred in the first phase of the epidemic, and healthcare workers (HCWs) were the most vulnerable cohort for COVID-19 due to frequent and close contact with COVID-19 patients without, at least in an initial phase, adhering to strict hygienic measures.